Conveyer



Sept. 5, 1944. w. PABsT CONVEYER Filed Aug. 24, 1942 r e sheet-sneet 1 IINVENTOR. Wm 75/? W. PflBST CQNVEYER Filed Aug. 24, 1942 e sheets-sheetsINVENTOR; 1/1 4415? W. PABsT Maw Sept. 5, 1944. w. w. PABST CONVEYER Filed Aug. 24, 1942 e Sheets-Sheet 4 w l R 2 mp V a WW R m M w\\ QNN MawATToRWEY sew. s, 1944.

\ w. w. PABST CONVEYER Filed Aug. 24, 1942 6 Shefis-Sheetf INVENTOR,

Wm TEA W; P4567 ATToRA/EY w. w. PABST 2,357,600

'CONVEYER Filed Aug. 24, 1942 Sept. 5, 1944.-

e Sheets-Sheet 6 I $3 j l J l l INVENTOR. Y

3 W44 75/? W. P4557 4 7 TOR/V5 Y Patented Sept. 5, 944

' PATENVTUOFFICE comma 11 Claims.

This invention relates generally to loaders and more particularly to acombination elevator-conveyer, transfer and stacker.

Among the principal objects of the invention lies the provision ofloader structure adapted to receive aplurality of articles in successionat one surface level and to elevate, convey, transfer and stack or pilesaid articles in the same order at another surface level, said lastmentioned surface level being either above or below the first mentionedsurface level. v

The moving of large numbers of bulky articles from one location toanother is a general problem confronting many industries. vention isconcemednot so muchwith the vehicles themselves, such as trucks, boxcars, barges and ships, but with structure for economically andeiilciently loading such conveyances.

Another object of the present invention lies in the provision of adevice of the class described which is portable so that the same can beoperated, moved and maintained by a minimum amount of manual labor,although auxiliary' equipment may be necessary to move the stackerunit.v v

Another object herein lies inthe provision of loading equipment whichis'strong and relatively light in weight so that the same may be easilyportable. i.

A still further object herein lies in the provision of a device havingthe hereindescribed char:

acteristics, yet which is of simple construction so as to be low infirst cost, maintenance and operation, permitting a consequentwidespread sale.

anduse. j

These objects and other incidental advantages will more fully appear inthe progressof this disclosure and be pointed out in the appendedclaims. I t In the drawings constituting a material part hereof, similarreference. characters designate corresponding parts throughout theseveral views, and in which: I

Figure l is a side elevational view of an embodiment of the inventionshowing the elevator conveyer unit. Figure 2 is a top plan view ofFigure 1. Figure- 3 is an enlarged fragmentary vertical sectional viewof the elevator conveyer unit showing in detail parts illustrated inelevation in the sectional view of the right hand portion of FigureApplication August 2 1,

The present in- Walter w. Pabst, Elizabeth, N. J.

194;, Serial No. 455,878

L'showing indetail the upper or delivery end at the rear of theelevator-conveyer unit including the discharge platform as seen from theplane 5 Figure 10 is a sectional view of the front portion of the unit.g Figure 11 is a section along the line I l-l4 of Fig. 10. a

Figure 12-is a section along the line l5-l5 of Fig. 13. I

Figure ,13 is a sectional plan view of the unit.

' Figure 14 is atop view of a part of the unit.

The machine'shown in Figures 1 to 7 comprises three physically separableunits: an elevatorunit, generally indicated by numerals III, II and I2respectively. While the invention is capable of use with articles havingvarious shapes, for the purpose of example the same is illustrated asadapted for use with barrels or'drums having a generally cylindricalconfiguration. As so adapted a supply l3 of barrels may be disposed upona working surface M such as a pier l5.'

. Without raisingthe barrels from the working surface l4 they aremanually fed to the unit III which elevates said barrels in consecutiveorder and depositsthem upon the unit I I. On the unit H the barrels bythe action of gravity are rolled down to the buffer l6 from which theyare taken and lowered into the hold H, of the ship l8 by the unit l2. Amore detailed description of the article lifting arms actuatingmechanism 21; and

a delivery or discharge platform 28.

The primary lower movable frame III is substantially stationary when theunit 10 is'in operation but is movable from place to place,'by theoperator, by reason or the fact that the frame 20 conveyerunit, amagazine-transfer and a stacker is mounted upon a pair of rear wheels 28and a pair of front wheels 38. The frame 28 is preferably of oblongshape and may be fabricated in any desired manner, includinglongitudinal frame members 3|, 32, and rear frame member 33, a frontframe member 34 (see Figure 3) and an X shaped trussmember 35. The rearwheels 28 are journalled in any suitable manner, below the rear framemember 33. Connecting the forward portions of the frame members 3| and32 is a plate 35 below which is rotatably mounted a plate 31, whichcarries an axle 38 having journalled at the outer terminals thereof thewheels 38. The

rotation of the plate 31 and the structure connected thereto about avertical axis through the orificed boss 38 is facilitated by a pluralityof rollers 48. A tongue 4|, pivotally connected at the point 42 to theplate 31, serves as a pulling or pushing handle so that the lower .frame28 can be moved around carrying its superstructure with it.

The power source generally indicated by numeral 22 includes a primemover 43, which while illustrated as being an electric motor, may havesubstituted therefor any other suitable mediumv such as a steam,gasoline, or Diesel engine. The motor 43 is provided with a gearreductionbox 44 which is mounted upon a plate 45 extending between theframe elements 3| and 32.

The primary upper movable frame 2| is substantially stationary when theunit I8 is in operation, but it is movable with relation to the frame 28for the purpose of adjusting the effective height of the delivery ordischarge platform 28. The frame 2| is preferably of oblong shape andslightly longer than the frame 28 so as to compensate for the loss ineffective length when the frame M is :angularly disposed with relationto the horizontal. The frame 2| includes longitudinal frame members 46and 41, a rear frame member 48, a front frame member 48, and an X shapedtruss member 58. The front frame member 48 is preferably braced inposition by means of a pair of corner gussets while the rear framemember 48 is preferably in the form of a flat plate (see Figure 5)disposed at right angles to the frame members 46, 41, and dependingtherebelow. The frame member 48 is braced in position by a pair ofbraces 52.

The forward ends of the upper longitudinal frame members 46, 41 areoriflced and lie laterally outside of the forward orificed ends of thelower longitudinal frame members 3|, 32. These orifices are aligned andthe multi-duty shaft 53 is journalled therein, and serves to pivotallymount the frame 2| on the frame 28. The means 23 to adjust theinter-relation of the frames 28 and 2| takes the form of a hydraulicjack having a cylinder 54. a piston 55, an operating handle 56, and avalve 51. The cylinder 54 is pivotally mounted on the intersection 58 ofthe truss 35 and the 'piston 55 is pivotally mounted under theintersection 58 of the truss 58 by means of the pillow blocks 68 and 6|respectively.

The delivery or discharge platform 28 includes a plurality oflongitudinal frame members 62, 63,

and 64, the forward ends of which are pivotally connected to the pin 65(see Figures 5 and 6).

Pin 65 is carried by supports 66 secured to the lower end thereofslidably penetrating the clamp 68 and the rear frame member 48 on whichthe clamp is attached.

Running above and below the frame members 46 and 41 are a pair of spacedand substantially parallel chains 18 and 1| referred to generally as thecarrier 24. The chains 18 and 1| are preferably -of the roller typesincewhen carrying the articles |3 the chains ride along the upper surfacesof the upperrlongitudinal frame members 46 and 41 which act as trackstherefor. Chains 18 and 1| are carried atthe lower bights thereof 'gear88 on the upper end of a shaft 8|. I

shaft 8| is carried laterally outward, spaced andx by idler sprockets 12and'13 and are carried and driven at the upper bightstl' ereof by thedriver sprockets 14 and 15. The idler sprockets 12 and 13 are rotatablymounted on the multi-duty shaft 53. The driver sprockets 14 and!! arefixedly mounted upon a shaft 16 journalled in bearing supports 11 and 18mounted on the rear frame element 48, One end of the shaft 16 isprovided with a bevel gear 18 which meshes with a bevel he parallel tothe upper longitudinal frame member 41 by the bearing supports 82 and83. The lower end of shaft 8| has a bevel gear 84 fixedly mountedthereon which-meshes with a bevel gear 85 fixed on one end of the shaft53. Shaft 53 is positively driven by a pair of sprockets and a chain 86,one sprocket being fixed on the shaft 53 and the other on the gearreduction box 44. Electrical switches (not shown) may-be placed on theunit l8 at convenient locations for controlling the movement of thecarrier 24. Where the motor 43 is of some other type, appropriatecontrols may be similarly located.

The carrier 24 is provided with two oppositely disposed pairs of articlecarrying dogs 81 and 88 generally referred to as the dogs 25. Sinceall'of the dogs are of substantially identical construction. adescription of one will suflice for all. As best-seen in Figure 3, thedog- 81 there shown includes the article engaging portion 88 and thecounterweight 88. The article engaging portion is preferably curved soas to properly engage the article, and the counterweight is preferablyangularly disposed with relation to the article engaging portion. Thedog 81 is pivotally connected to the chain, say 41, by'means of a pintle8| in a pair of enlarged orificed links 82 and the dog is supported inits active position by the counterweight engaging the outer or uppersurface of the chain. In order to properly seat the article l3 and toprotect the carrier 24 from excessive localized wear. pairs of articleseats 83, and 84 are provided. These are preferably in the form ofenlarged links with a top plate carried above the general level of theupper or outer surface ofthe chain.

The dogs 25 when inthe upper or active position thereof (dog 81, Figures1 and 3) are upright and when pulled by the chain exert a liftingeffect. When the dogs 25 pass the upper driver sprockets they becomeinverted to their lower or inactive position and are suspended fromtheir pintles (dog 88, Figure 1). When the dogs are in the lower orinactive position thereof they extend a lesser distance perpendicularlyThe articl lifting rms generally indicated by numeral 26 include a pairof plain arms 96, 91 and a pair of bell-cranks I and IOI The arms 96, 91are freely pivotally mounted on the multi- .duty shaft 53 inwardly ofthe bearings 98, 99

which are mounted on the front frame member 49. The bell-cranks I00 andIOI are freely piv- -otally mounted on the shaft 3 outwardly of theidler sprockets 12 and 13 respectively. The

plain arms 96 and 91 and the lower arms I02 and I03 of the bell-cranksare integrally connected by the tie rods I04, I05. The arms 96, 91, I02,and I03 have a certain configuration seen best in profile in Figures land 3, including wedge shaped terminals and curved upper surfaces.

The article lifting arms actuating mechanism 21 is located principallyat the upper rear end of the upper frame 2|. A pair of followers I06 andI01 are freely rotably mounted on the shaft 16 and have secured theretoradial arms I08 and I09. The radial arms I08 and I09 are connected tothe upper arms 0 and III of the bell cranks I00 and ml by connectingrods H2 and H3 which are adjustable in length by means of theturnbuckles H4, H5. Each of the chains and 1| has mounted on the outerlateral surfaces thereof two opposite pairs of projections H6 and II1.As the chains 10 and H travel their course these projections H6 and H1alternately engage the followers I06, I01 and cause them to rotatethrough approximately. one hundred eighty degrees, which motion istransmitted to article lifting arms 26. The projections are sopositioned with relation to the pairs of dogs on the chains that theprojection 1 causes the arms 26 to deposit an article I3 on the seats'93 while the projection II6 does the same for the seats 94.

After the projection H1 or H6 as the case may be has passed forwardlyfrom under the followers I06, I01 (see Figure '1), the weight of thearticle liftin arms 26 pulls the radial arms I08 and I09 to their normalforward position and in order' to control this return, a suitable shockunit which may be conveniently moved from place to place by a driverseated at I93.

The movable upper frame or boom I94 includes longitudinal frame members'I95 and X-shaped truss members I96 (Fig. 10) interconnected bytransverse frame members I91. The

' forward end of the upper frame I94 is mounted absorber, such as thehydraulic dashpot H8 is pivotally connected to the lower arm I02 and asuitable bracket on the forward under surface of the frame member 3I.

Figures 8 to 14 illustrate a hydraulically operated elevator-conveyerwhich is provided with a lower frame or chassis I 10 comprisinglongitudinal frame members HI and transverse or truss members I12. Rearwheels I13 are carried by springs I14 (Fig.8) connected to the frameI10. Each of the front wheels I15 is carried by an axle I16 connected inthe usual manner to a frame member I11 which is swingable about avertical king pin I18 (Fig. 12) The pin I18 is carried by a frameelement I19. The two wheels I15. carry levers I80 and I8I, which arejoined by a rod I82 (Fig. 13). The wheels I15 are steered by a drag linkI83 which is connected to the lever I8I. The rear end of the member I83is connected to a swingable mounted lever I84 (Fig. 8). A hand wheel I35which is operated by the driver, rotates a shaft I86 provided with aworm segment I81 which actuates the ;a brake I92. Thus the illustratedelevator-comv veyor constitutes an independent self-propelling gear 2I9which is integral with a sleeve 220 carlever I84. Thus the front wheelsI15 are steered upona pivot or'shaft I98 which is carried by the lowerframe I10. 1 v

The upper frame I94 is raised or lowered in relation to the lower frameI10 by a hydraulically operated device which comprises a hydraulic pumpI99 driven by the motor I89 (Fig. 8). The pump I99 is connected by afluid-transmitting pipe 200 to acylinder 20I the piston rod 202 of whichcarries a pin 203 movable in a slot 204 of an angular lever 205. Thelever 205 is pivoted at 206'to the upper frame I94 and is connected by apivot 201 with one end of a lever 208. The opposite end of the lever 208is pivoted at 209 to a frame member 2I0 constituting a part of the upperframe I94.

Thus the piston rod -202 ,of the cylinder 20I which receives its fluidfrom the motor-driven pump I99, may swing the lever 205 about its pivot206 and thereby move the lever 209 upwardly or downwardly so as to raiseor lower the upper frame I94.

The upper frame I94 carries at its outer end a frame 260 which isslidable in guides 26I constituting a part of theframe I94. The frame260 chains 2I4 extend between the sprockets 2H and.

Sprockets 2" are driven by the motor I89 through the medium of a chaintransmission 2I5 (Fig. 9) which connects the motor'l89 with an elongatedshaft 2I6. The shaft 2| 6 is carried in brackets 2I1 (Fig. 13) attachedto a frame member I1I constituting a part of-the "lower frame I10. Thefront end of the shaft 2I6 has the form of a bevel gear 2I8 meshing witha bevel ried by the shaft I 98.- The sleeve 220 is firmly connected witha bevel gear 22I meshing with a bevel gear 222 which constitutes thefront end of a telescopic shaft 223'. The shaft 223 is'carried bybrackets 224 attached to a longitudinal frame element I95 of the upperframe I94. The rear end of the shaft 223 telescopes with an vex--tension shaft 266 (Fig. 14) which is operatively connected to the shaft263 of the driver sprockets 2IIby a worm 261 and a worm gear 268.' Thusthe chains 2I4 are driven from the motor I69 by the chain transmission2I5, the shaft 2 I6, carried by the lower frame I10, the bevel gears 2I8and 2I9, the sleeve 220, the bevel gears .22I and 222, the shaft 223which is carried by the upper frame I 94, the extension shaft 266, theworm 261, ,the worm gear 268, the shaft 263 and the sprockets 2I I. Itis apparent that the operative length of the chains 2 I4 and theposition of the sprockets 2| I- and of the hooks 265 may be convenientlyadjusted by means of the slidable frame 260.

The chains 2I4 carry; article-supporting dogs 25 and article seats 93(Fig. 10) which are similar to those previously described.

Brackets 2I2 are carried by the-slid-' shown in detail in the drawings.

The article lifting device is operated automatically and hydraulicallyfrom a cylinder 225 which is supplied with a fluid by the pump I99through pipes not shown in the drawings. The 'piston rod 226 of thecylinder 225 is connected by a pivot 228 of a cross head 221 with therear ends of two members'234. The outer ends of members 234 are mountedupon the shaft I98.

The cylinder 225 is operatively connected with a four way valve 233 byany suitable means not The valve 236 is carried by a frame member I95andis opened or closed by a swingable lever 231. The lever 231 is pivotallyconnected to a sleeve 238. One end of the sleeve 238 is connected to afront rod 239, while the other end'of the sleeve 238 is connected to arear rod 240. The rod 239 is connected by a pivot 24I toan end of alever 242 which is mounted intermediate its ends upon a pivot 243carried by the frame I94. The free end of the lever 242 may be engagedby a projection 244 carried by a chain 2I4. As shown in Figures and ll,a

guide ,245 is in engagement with the projection 244 while the latterpresses against the lever 242 during'an upward movement of that portionof the chain which carries the projection 244. The guide 245 is attachedto the frame I94 by supports 241.

The rod 240 is connected by a pivot 248 with a lever 249 which ispivoted at 258. The free end of the lever 248 is situated in the path ofthe projection 244 which, while in engagement with the lever 248, isguided by a guide 25I attached by supports 252 to the frame I94.

Figure 10 illustrates the position of the various parts as theprojection 244 is about to engage the upper end of the lever 242. In thecourse of the further upward movement of the projecinder 225 it will beactuated and will swing the lifter arms 229 and 23I about the rod 230.The arms 229 and 23I will raise the articles I3 and deposit them uponthe dogs 25 and supports 93.

Then the articles I3 will be transported upwardly by the chains 2I4,whereupon they may be deposited upon a suitable platform. (not shown),

It is apparent that the specific illustrations shown above have beengiven by way of illustration and not by way of limitation and that theyare capable of wide variation and modification without departing fromthe scope or intent of.

frame, an upper conveyer carrying frame, a pri-.

necting said frames at their front ends to permit the conveyer carryingframe to be raised and lowered with relation to the supporting frame,means for raising and lowering said conveyer carrying frame, a secondaryshaft journaled upon the rear end of the conveyer carrying frame, powermeans on the supporting frame for driving the secondary shaft, anendless conveyer trained aboutsaid shafts and positively driven from thesecondary shaft, a loading device at the front of the frames pivotallysupported on the primary shaft for swinging movements toward and fromthe conveyer, and means actuated from and controlled by the conveyer forperiodically swinging said loading device on its loading movement, saidlast named means including a set of crank arms on the loading device anda set of arms on the conveyer carrying frame, contact means on theconveyer for engaging and moving the second named set of arms, and aconnecting medium between the said sets of arms.

2. In a loading apparatus, a lower supporting frame, an upper conveyercarrying frame, a primary drive shaft journaled upon and pivotallyconnecting saidframes at their front ends to permit the conveyercarrying frame to be raised and lowered with relation to the supportingframe, means for raising and lowering said conveyer carrying frame, asecondary drive shaft journaled upon the rear end of the conveyercarrying frame, power means on the supporting frame for driving theprimary drive shaft, inter-connecting gearing between the shafts fordriving the secondary drive shaft from the primary drive shaft, anendless conveyer trained about said shafts and positively driven fromthe secondary drive shaft, a gravity retracted loading device at thefront of the frames pivotally supported on the primary drive shaft forswinging movements toward and from the conveyer, and means actuated fromand controlled by the conveyer on one portion of movement of theconveyer for swinging said loading device on its loading movement towardthe conveyer and on another portion of *movement of the conveyerreleasing said loading device for retraction, said last named meansincluding a. set of crank arms on the loading device and a set of armson the conveyer carrying frame, contact means on the conveyer forengaging and moving the second named set of arms, up

and a connecting medium between the said sets of arms.

3. In a loading apparatus, a lower supporting frame, an upper conveyercarrying frame, a p imary drive shaft joumaled upon and pivotallyconnecting said frames at their front ends to permit the conveyercarrying frame'to be raised and lowered with relation to the supportingframe, means for raising and lowering said conveyer carrying frame,asecondary drive shaft journaled upon the rear end of the conveyercarrying frame, power means on the supporting frame for driving theprimary drive shaft, inter-connect. ing gearing between the shafts fordriving the secondary drive shaft from the primary drive shaft, idlersprockets revolubly mounted on the primary drive shaft, drive sprocketsfixed to the secondary drive shaft, an endless chain conveyer.

trained about said sp'fiickets and driven by the drive sprockets on thesecondary drive shaft, a

, loading device at the front of the frames pivotmaryshaft journaledupon and plvotally conally mounted on the primary drive shaft forswinging movements toward and from the conveyer, and means actuated fromand controlled by the conveyer for periodically swinging said loadingdevice on its loading movement, said last named means including a set ofcrank arms on the loading device and a set of arms on'the con veyercarrying frame, contact means on the conveyer for engaging and movingthe second named set of arms, and a connecting medium between the saidsets of arms.

4. In a loading apparatus, a lower supporting frame, an upper conveyercarryingframe, a primar 'drive shaft journaled upon and pivotallyconnecting said frames at their front ends to permit the conveyercarrying frame to be raised and lowered with relation to the supportingframe, a secondary drive shaft journaled upon the rear end of theconveyer carrying frame, means for raisingrand lowering said conveyercarrying frame, power means on the supporting frame for driving theprimary drive shaft, interconnecting'gearing between the shafts fordriving the secondary drive shaft from the -primary. drive shaft, anendless conveyer trained about said shafts and positively driven fromthe secondary drive shaft, a loading device at the front of the framespivotally supported on the primary drive shaft for swinging movementstoward and from the conveyer, and means actuated frame, an upperconveyer carrying frame, a shaft journaled upon and pivotally connectingsaid veyer carrying frame to be raised or lowered with on the conveyerfor engaging and moving the second named set of crank arms, andconnecting rods between the sets of crank arms.

7. In a loading apparatus, a lower supporting frame, an upper conveyercarrying frame, a front shaft joumaled upon and pivotally connectingsaid frames at their front ends to permit the conrelation to thesupporting frame, arear shaft journaled upon the rear end of theconveyer carrying frame, means for raising and lowering the conveyercarrying frame with relation to the supporting frame, means on thesupporting frame for driving the rear shaft, an endless chain conveyertrained about said shafts and driven from the rear shaft, and pivotallymounted article engaging dogs on the conveyer, each dog having anarticleengaging arm and 'a weighted arm, the latter being adapted torest on the conveyer and support the article engaging arm in workingposition when the dog is on the working stretch of the conveyer andbeing adapted to swing said arm to a position parallel with the returnstretch of the conveyer when in the travel of the conveyer the dog isonsaid return stretch,

- a loading device pivotally supported at the front frames at theirfront ends, a shaft journaled upon the rear end of the conveyer carryingframe, power means on the supporting frame for driving the second namedshaft, an endless conveyer I trained about said shafts and positivelydriven from the second named shaft, a loading device at the-front of theframes pivotally mounted on the first-named shaft for swinging movementstoward and from the conveyer, and means actuated from and controlled bythe conveyer for swingingsaid loading device on its loading move-,

ment, said means including a rocker arm mount- 'means on the supportingframe for driving the end of the frames for swinging movement toward andfrom the conveyer, and means actuated from and controlled by theconveyer for periodically swinging said loading device on its loadingmovement to deliver articles from the said loading device to theconveyer'inimmediate advanced the said'dog, said last named meansincluding a set of crank arms on the loading device and a set of crankarms on the conveyer carrying frame. contact means on the conveyer forengaging and moving the second named set of crank arms, and

a connecting rod between the said sets of arms the front shaft forswinging movements toward and from the conveyer, means controlled by theconveyer for swinging said loading device on its loading movement, saidlast named means including a set of crank arms on the loading device anda set of arms on the conveyer carryin frame, contact means onthe-conveyer for engag-' ing and moving the second named set of arms,

and a connecting medium between the said sets of arms, supporting wheelsat the rear ofthe supporting frame, and a wheeled truck at the primarydrive shaft, interconnecting gearing between the shafts for driving thesecondary drive shaft from the primary drive shaft, an endless conveyertrained about said shafts anddriven from the secondary drive shaft, aloading device at the front of the frames pivotally mounted on theprimary drive shaft for swinging movements toward and from the conveyer,and means actuated from and controlled by.the conveyer for swinging saidloading device on its loading movement, said means including a set ofcrank arms on the loading device, a set of crank arms mountfront of theframe having a draft tongue and having a turntable'connectlon with theframe whereby the truck may be disposed to bring the tongue to an inwardposition beneath the frame or to. an outward position beneath and beyondthe loading device.

ii, In adevice of the character specifled,- the combination of aconveyer carrying frame having a receiving end and a discharge end,shafts at'the' respective ends of the said frame, an endless conveyertrained about the said shafts, drive ed on the conveyer carrying frame,contact means 76 means for driving the said conveyer, a loading devicepivotally mounted at the receiving end of the said frame for swingingmovement toward and from the said conveyer, means actuated from andcontrolled by the said conveyer for swing- .ing said loading device onits loading movement,

, riodically engaging and moving the second named set of arms andconnecting rods between the said sets of arms. I

10. In a device of the character specified, the combination of aconveyer carrying frame having a receiving end and a discharge end,shafts at the respective ends of the said frame, an endless conveyertrained about the said shafts, drive. means for driving the saidconveyer, arr article engaging dog on the said conveyer, a'loadingdevice pivotally mounted a' the receiving end of the said frame forswinging movement toward and from the said conveyer and positioned todeliver articles to the said conveyer immediately in advance of the saiddog, and means actuated from and controlled by the said conveyer forswinging said loading device on its loading movement, said last namedmeans including a set of crank arms on the loading device and a set ofarms ivotally mounted at the discharge end of the conveyer, contactmeans on the conveyer, for periodically aasaeoo engaging and moving thesaid second named set of arms, and connecting rods between the said setsof arms.

11. In a device of the character specified, the combination of aconveyer carrying frame having a receiving end and a discharge end,shafts at the respective ends of the said frame, an endless conveyertrained about the said shafts, drive means for driving the saidconveyer, an article engaging dog on the said conveyer, an article seaton the conveyer in advance of the said dog, a loading device pivotallymounted at the receiving end of the said frame for swinging movementtoward and from said conveyer and positioned to deliver articles to thesaid article seat in advance of the said dog and in contact therewith,and means actuated from and controlled by the said conveyer for swingingsaid loading device on its loading movement, said last of arms, andconnecting rods between the said sets of arms.

WALTER W. PABST.

